The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Oct. 31, 2012	Mar. 31, 2022	Mar. 31, 2021
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 312,000	$ 303,000
Changes in carrying values of goodwill		$ 0
Acquisition of Lygo International Limited \| Customer Relationships
Finite Lived Intangible Assets [Line Items]
Useful life	13 years